DE102007020282A1 - Signaling device with test mechanism and special key for actuating the test mechanism - Google Patents

Abstract

The invention relates to a signaling device 1 with manual release, in particular manual call points, with a housing 2 and with a fragile element 4, which closes the housing 2 to the user on the user side and which must be broken for manual release of the reporting device 1 by the user, with a test mechanism 14 for a nondestructive functional test of the reporting device 1, wherein the test mechanism 14 is formed and / or arranged to trigger by a displacement of the frangible element 4, the reporting device 1 testing and a corresponding special tool.

Description

State of the art

The Invention relates to a signaling device with manual triggering, in particular a manual call point, with a housing and with a fragile element, which the housing operator side to the user completes and which for manual triggering the reporting device must be broken by the user.

Manual call points are components of often complex fire detection systems and allow a user to trigger a fire alarm by manual operation. The manual call points are, for example, in the norm EN 54-11 a distinction is made between a type A and a type B. In type A design, an alarm is triggered by destroying or even moving an element. In the type B type, the manual operation of a trigger element, for example a push button, is additionally required.

A general state of the art to manual fire alarms forms the published patent application DE 198 35 318 A1 which relates to a manually operated type B detector. The detector has a housing with a front view window, behind which an actuating means for triggering a message in the form of a push button is arranged, and additional display means which can give the user different information about the purpose and / or the operating state of the detector.

Disclosure of the invention

in the The invention provides a signaling device with the features of claim 1 and a special key with the features of claim 14 optionally in combination with the reporting device proposed. Preferred or advantageous embodiments The invention will become apparent from the dependent claims, the following description and the attached figures.

According to the invention, a signaling device with manual triggering, in particular a manual call point indicator and / or a fire push button detector is proposed, which preferably complies with the standard EN 54-11 , Especially with regard to the types A and B is formed with a fragile element. Such signaling devices are used, for example, as components in complex fire detection systems installed in buildings or public places.

The Message device has a housing, which, for example as a housing base with a hinged door or a lower housing part with a removable lid is trained. The housing is user-friendly to the user completed with a fragile element. The fragile one Element is preferably plate-shaped or as a plate formed and in particular made of glass or plastic. In the case of a plastic disc, this is preferred Predetermined breaking points, so that these in a manual release decays by the user into predetermined sections. The signaling device is designed such that when a manual Triggering of the message device by the user the fragile Element is intentionally broken.

According to the invention the reporting device is a non-destructive testing mechanism Functional test on, in particular, the fragile element not destroyed. The test mechanism is designed and / or arranged that the functional test a shift of the includes fragile element, wherein by the displacement of the Message device is activated or triggered. Preferably is the bump test and resetting the message device without an exchange of components possible.

While a function test when using resettable elements the reporting devices can be easily carried out, by triggering the annunciator and reset after triggering becomes the test of a reporting device with a fragile one Element carried out so far, for example, by the Housing of the annunciator open and a Actuation of the reporting device is simulated.

In contrast, the invention proposes a test mechanism which moves the fragile element during the bump test, however, without destroying the fragile element in this way, especially when the housing is closed to simulate an actuation close to application. This will be by the present invention an advantageous reporting device described with a fragile element, which in simpler Way, but still high security against intended or unwanted false triggering offers.

In a preferred embodiment of the invention, the test mechanism is designed such that during the functional test the displacement of the frangible element takes place along a plane that is parallel or identical to the surface extension of the frangible element. The direction of displacement of the fragile element is preferably formed perpendicular to the usual operating direction of the signaling device. With this training, the test mechanism mus be integrated in a space-saving manner in the housing of the reporting device.

The Message device preferably has a switching element, which when actuated emits a message, wherein the switching element indirectly or directly operated by the fragile element becomes. In the former case, the switching element is thus directly triggered by the fragile element, for example by the switching element and the fragile element a common Have contact surface. In the second case will be the movement of the fragile element over at least an intermediate member transmitted to the switching element to to switch this or press.

at a particularly preferred embodiment is this Intermediate member formed as a sliding plate, which is the switching element preferably directly actuated. The sliding plate is in the housing between a normal position - in an unresolved state of the reporting device - and a message position - in a triggered state the message device - slidably arranged. In the normal position the sliding plate is positively connected by the fragile element held, wherein it is preferably provided that the sliding plate is biased by a weight force or a spring force. sliding plate and fragile element are coupled in such a way that by the displacement of the fragile element the sliding plate in the reporting position is transferable and / or transferred becomes.

at a preferred practical realization of the invention the test mechanism a support block on which the fragile Element rests and controls the displacement, the fragile Element preferably with a free side edge, in particular linearly rests on the support block.

Around to achieve the displacement of the fragile element is the Support block movable, in particular displaceable and / or rotatable. In particular, the support block has a normal support surface and a test pad. Lies the fragile one Element on the normal support surface on, so is the optional sliding plate in the normal position. On the other hand, if the fragile element lies on the test support surface on, so the fragile element is already shifted, so that the optional sliding plate in the signaling position is arranged. It is particularly preferred if the change of Bearing surface from the normal support surface to the Test support surface by rotation of the support block, in particular about a rotation axis perpendicular to the surface extension the fragile element is implemented or implemented.

at an advantageous and in particular structurally simple embodiment the support block in cross section has a rectangular shape or is formed as a rounded rectangle, wherein the normal support surface on a narrow side and the test pad on one Longitudinal side are arranged. This structurally simple extendable training The invention has the advantage that the fragile element both in the normal state as well as in the test state by defined bearing surfaces always is held horizontally and / or linearly rests. In addition, the particular embodiment of the support block has the advantage that a certain force is applied for actuation got to. This is due to the fact that the fragile Element first against the actual direction of displacement is deflected because due to the rotation of the support block, the fragile Element led over the diagonal or the corner of the support block becomes.

at a development of the invention, the support block for testing be rotated and shifted, with the combined sliding / rotating movement an accidental release is almost excluded.

to Operation of the test mechanism, it is preferred that this has a mechanical interface which exclusively operated by a special key section whereas actuation is blocked by standard tools or prevented. This mechanical interface can, for example designed as an oval opening with a central retaining mandrel so that the test mechanism only by the adapted Special key section can be triggered however, triggering by, for example, screwdrivers etc. is not possible.

One optional, further protection against a wanted false trip, So in particular against vandalism, is given by the fact that the mechanical interface is secured by a cap, wherein the cap and / or the reporting device a closure have or form together, the intended purpose only to open with another special key section is. In this case, the cap can be completely removed or hinged to the housing of the reporting device, so that it can be swung away. In a preferred realization According to the invention, the closure comprises in particular two receiving openings in the case, in the two nose-shaped extensions the other special key section can intervene, to pry off the cap.

One Another object of the invention relates to a special key, which the special key section and the other Special key section, wherein the sections are trained, intended the interface to operate the test mechanism or the closure of the cap.

optional the message device is designed umrüstbar, wherein the Sliding plate has moldings which are formed positively with a resettable element, which instead of the fragile one Element is inserted, cooperate, so that an actuation of the resettable element to a displacement of the sliding plate of the normal position leads to a message position. Especially for a reset of the sliding plate, but optional also for the assembly of the fragile element, points the special key has a third special key section on, which is designed as a push rod. Message device and Special keys are adapted to each other so that the third special key section through a housing opening into the particular closed housing insertable is and a shift of the sliding plate against the direction of displacement causes.

One Another object of the invention relates to a method for non-destructive Testing the function of the reporting device according to Features of independent claim 16.

Brief description of the drawings

Further Features, advantages and effects of the invention will become apparent the following description and the figures of a preferred embodiment. Showing:

1 a schematic, three-dimensional plan view obliquely from the front of a manual call point as an embodiment of the invention;

2 a schematic, three-dimensional plan view obliquely from the front in the open manual call point in 1 ;

3 a similar view as in 2 in the manual call point during the operation of the test mechanism;

4 the closed manual call point in the same representation as in the 1 with removed cap;

5 the closed manual call point in 1 in the same representation with attached special key for opening the cap.

each other corresponding parts or sizes are in the figures provided with corresponding or identical reference numerals.

Embodiment (s) of the invention

The 1 shows in a schematic three-dimensional view obliquely from the front a manual call point 1 which may for example be part of a complex fire alarm system. The manual call point 1 includes a housing 2 which shows in plan view a square or rectangular basic shape and in the edge of a cap 3 and in the middle a glass plate 4 is arranged. The glass plate 4 covers from the inside of the case 2 a front-sided window 5 of the housing, which has a rectangular basic shape, wherein the height of the window 5 between one-third and one-half the height of the case 2 makes up and the width of the window 5 except for protruding edge strips over the entire width of the housing 2 extends.

For triggering the manual call point 1 must the glass 4 be broken by force, already breaking the glass 4 sufficient to the manual call point 1 trigger. Optionally switch to acknowledgment of the tripping within the housing 2 in areas 6 that z. B. are designed as windows and / or normentsprechende symbols or pictograms, the background color, as will be explained in detail later. This shows the manual call point 1 in the unausgelösten state with a behind the glass pane 4 arranged homogeneous background and in the triggered state by color highlighted areas 6 , In addition, by breaking in the glass 4 one inside the case 2 arranged switching element (not shown) triggered, which sends an electrical signal.

The 2 shows a schematic three-dimensional view into the housing 2 of the manual call point 1 , wherein a housing lower part 7 , which is formed for example as an integrally molded injection molded part, can be seen with a plurality of functional components used. At the viewer facing the front of the housing base 7 this is through the glass pane 4 completed, which has a rectangular basic shape and fastening clips 8th is held laterally. The manual call point 1 also has a sliding plate 9 on which parallel to the glass plate 4 is further arranged in the housing interior. The sliding plate 9 is between a normal position and a message position along the arrow direction 10 slidably mounted. The normal position corresponds to the unreleased state of the manual call point 1 whereas the reporting position corresponds to the triggered condition. To implement the Sliding operation between normal position and message position is indicated by the manual call point 1 a spring device 11 on which the sliding plate 9 in the direction of displacement 10 biases.

In the normal position is the sliding plate 9 but with a strip-like extension 12 on one side edge, in 2 on the lower edge, the glass pane 4 on, so that the sliding movement is positively locked. On the opposite side of the edge of the glass pane 4 , in 2 the top edge, is the glass plate 4 with the narrow side 13 a support block 14 in Appendix. In summary, the sliding plate is supported 9 in the direction of displacement 10 over the ledge-like heel 12 at the lower edge of the glass plate 4 off, with the glass plate 4 in the same direction with the upper edge on the narrow side 13 of the support block 14 supported.

At a transition from the untreated state to the tripped state, the glass plate becomes 4 destroyed as a fragile element by force, with both the positive connection between glass plate 4 and support block 14 and the positive connection between the sliding plate 9 and glass plate 4 will be annulled. As a result of the reversed positive connection shifts the sliding plate 9 under the action of the spring device 11 in sliding direction 10 and changes from the normal position to the message position. In this change, an unillustrated switching element, which is for example designed as a microswitch, actuated and deposited a message and optionally at the same time the background of the areas 6 changed color.

To carry out a functional test, to check the functionality of the manual call point 1 or to check its connection in a fire alarm system, can the manual call point 1 disassembled or opened and the switching element, not shown, are triggered manually. After this procedure, however, is not completely ruled out that the manual call point 1 becomes inoperative in the subsequent assembly, the points in the 1 and 2 illustrated manual call points 1 a test mechanism, which is a test of the manual call point 1 without opening the housing 2 and without destroying the glass plate 4 allowed. The test mechanism is realized by the fact that the support block 14 is mounted rotatably and optionally displaceable and with the housing closed 2 is operable.

The 3 shows the manual call point 1 in a trial release, with the glass plate 4 in contrast to the preceding figures is shown diagrammatically transparent. For this purpose, the support block 14 about a centrally arranged axis of rotation perpendicular to the surface extension of the glass plate 4 turned, leaving the glass plate 4 in the final state on one longitudinal side 15 of the support block 14 rests. Optionally, a shift against the direction of displacement 10 to solve a lock necessary to the support block 14 to unlock, so that a deliberate false triggering of the manual call point 1 is made difficult by unauthorized persons. Due to the bias of the sliding plate 9 will the glass plate 4 in sliding direction 10 together with the sliding plate 9 offset, passing through the sliding plate 9 the switching element, not shown, is triggered. Advantageous in the execution of the support block 14 with a rectangular basic shape with rounded corners, it is that both in normal condition when resting on the narrow side 13 as well as in the test condition when placed on the long side 15 the glass plate 4 each supported by the support block parallel to the overlying edge. Moreover, it is at the transition from the normal state to the test state of the support block 14 necessary that an actuation resistance due to the corner areas of the support block 14 must be overcome, because first the glass 4 as well as the sliding plate 9 against the direction of displacement 10 must be moved.

As is clear from the 4 that gives the manual call point 1 in the same representation as in 1 shows, but with removed cap 3 , is the support block 14 from outside the case 2 actuated. For this purpose, the support block 14 a mechanical interface 16 which acts as an oval or elliptical recess with a central spike in the support block 14 is formed and the over a slot-like or oval opening 17 in the case 2 behind the cover plate 3 is arranged, is reachable. Due to the special design of the mechanical interface 16 it is ensured that a test-triggering only by a special tool, which one to the mechanical interface 16 has adapted functional portion, and can not be achieved, for example, with a commercially available screwdriver. This measure complicates a deliberate false triggering of the manual call point 1 by unauthorized persons.

To further protect against a desired false trip is the cap 3 or the housing 2 secured with a lock, which can also be opened only with a special tool. The closure has two receiving openings 18 on that at the top edge of the window 5 are arranged and form the beginning of guide channels. The guide channels extend in the course initially protected within the housing 2 and are in an area below the cap 3 open to the outside. The guide channels allow the insertion of angled, nose-like spines of a special tool, wherein the end portions of the nose-like dome up to extend the outwardly open areas. By a pivoting movement of the dome to support points, which are each arranged in the protected area of the guide channels, the cap 3 be leveraged.

In the 5 is such a special tool 19 shown, which with the angled, nose-like, mutually parallel thorns 20 into the receiving openings 18 engages, so that by means of a lifting movement, the cap 3 can be leveraged.

The special tool 19 has the dome at one end 20 as functional elements for levering the cap 3 on. At another end is a special key 21 for actuating the support block 14 formed with a correspondingly adapted, oval cross-section with a central recess. At a third end has the special tool 19 a push bar 22 which is formed, the sliding plate 9 from the message position to the normal position, as shown in the 3 is shown.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19835318 A1 [0003]

Cited non-patent literature

• - EN 54-11 [0002]
• - EN 54-11 [0005]

Claims (15)

Message device ( 1 ) with manual release, in particular manual call points, with a housing ( 2 ) and with a fragile element ( 3 ), which the housing ( 2 ) on the user side and which for manual triggering of the reporting device ( 1 ) must be broken by the user, characterized by a test mechanism ( 14 ) for a nondestructive functional test of the reporting device ( 1 ), whereby the test mechanism ( 14 ) is formed and / or arranged by a displacement of the frangible element ( 4 ) the reporting device ( 1 ) triggering. Message device ( 1 ) according to claim 1, characterized in that the test mechanism ( 14 ), the fragile element ( 4 ) in the plane of its surface extension or in a plane parallel to its surface extension. Message device ( 1 ) according to claim 1 or 2, characterized by a switching element which emits a message when actuated, wherein the switching element directly or indirectly by the fragile element ( 4 ) is pressed. Message device ( 1 ) according to claim 3, characterized by a sliding plate ( 9 ), which actuates the switching element and in the housing ( 2 ) is slidably disposed between a normal position and a reporting position, wherein the sliding plate ( 9 ) in the normal position by the fragile element ( 4 ) is held positively and by the displacement of the fragile element ( 4 ) is transferable to the reporting position. Message device ( 1 ) according to any one of the preceding claims, characterized in that the test mechanism comprises a support block ( 14 ) for controlling the displacement on which the fragile element ( 4 ) rests. Message device ( 1 ) according to claim 5, characterized in that the support block ( 14 ) is movable, in particular displaceable and / or rotatable, wherein by the movement of the support block ( 14 ) the displacement of the fragile element is effected. Message device ( 1 ) according to one of claims 5 or 6, characterized in that the support block ( 14 ) a normal support surface ( 13 ) and a test pad ( 15 ), wherein by rotation of the support block ( 14 ) the fragile element ( 4 ) from a support on the normal support surface ( 13 ) in a pad on the test pad ( 15 ) is transferred. Message device ( 1 ) according to one of the preceding claims, characterized in that the support block ( 14 ) has a rectangular cross section, wherein the normal support surface ( 13 ) on a narrow side and the test support surface ( 15 ) is arranged on a longitudinal side. Message device ( 1 ) according to one of the preceding claims, characterized in that the support block ( 14 ) has to be rotated and moved for testing. Message device ( 1 ) according to one of the preceding claims, characterized in that the test mechanism ( 14 ) an interface ( 16 ), intended only by a special key section ( 21 ) is operable. Message device ( 1 ) according to claim 10, characterized in that the interface ( 16 ) for actuating the test mechanism and / or the support block ( 14 ) is formed as an oval shaped opening with an internal mandrel. Message device ( 1 ) according to one of claims 10 or 11, characterized in that the interface ( 16 ) by a cap ( 3 ), the cap ( 3 ) is secured by a closure, which intended only by another special key section ( 20 ) is operable. Special key ( 19 ) used to test the reporting device ( 1 ) according to one of the preceding claims and optionally in combination with this, characterized by a first special key section ( 21 ) for actuating the interface ( 16 ) of the test mechanism ( 14 ) and with a second special key section ( 20 ) for actuating the closure of the cap ( 3 ). Special key ( 19 ) according to claim 13, characterized by a third special key section ( 21 ), the third special key section ( 21 ) complementary to an opening in the housing ( 2 ) is adapted so that the third special key section ( 2 ) against a displacement direction ( 10 ) in the housing ( 2 ) is insertable to the sliding plate ( 9 ) against the direction of displacement ( 10 ) to move. Method for nondestructive testing of the function of a reporting device ( 1 ) with manual triggering, in particular a signaling device ( 1 ) according to one of claims 1 to 12, with a special key ( 19 ), especially a special key ( 19 ) according to one of claims 13 or 14, wherein by means of a first special key section ( 21 ) of the special key ( 19 ) an interface ( 16 ) of a test mechanism ( 14 ) of the reporting device ( 1 ) and by means of a second special key section ( 20 ) a closure of an interface ( 16 ) of the test mechanism ( 14 ) protective cap ( 3 ) is pressed.